1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
kozerog [31]
3 years ago
11

Tom wants to reach a second floor window on a house that is 20 feet above ground. If he must put the ladder at a 70 degree angle

to the ground, how long must the ladder be?
Mathematics
1 answer:
LuckyWell [14K]3 years ago
7 0
Assuming the house is parallel to the ground, your triangle is made up by the house, the ground, and the ladder. Using sin(x) = opposite/hypotenuse on the angle 70 degrees, you would have sin(70) = 20/x (because 20 is the side opposite of the angle connecting the ladder and the ground)
--> simplify sin(70) * x = 20 --> x = 20 / sin(70 
--> substitute (and make sure your calculator in in degrees) x= 21. 284
You might be interested in
Describe how to combine like terms in the expression 3n + 4n -2
storchak [24]
You can combine the same numbers with the same variables using the operation sign for each. For example, using your equation, you would combine the 3n and 4n which is 7n. So your equation would be
7n - 2
5 0
3 years ago
Read 2 more answers
Solve the equation.<br> 8x= 72
BigorU [14]

Answer:

X=9

You divide 8 in each side and you will get x=9

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
a trader bought some eggs at 64 per dozen and sold 2/3 of them at 240/= per tray and the other 1/3 at 225/= per tray.In so doing
Lena [83]

Answer:

<h3>i think 30×12(-64)</h3>

do this simplification

your answer will come

4 0
3 years ago
Find the area (shaded) and round to the tenths place if necessary.
fomenos

Answer:

9π - 9

Step-by-step explanation:

Depends on what the question stated was pi (π). The area of the circle is 9(3 squared) * π. the shaded area is the area of the circle - the area of the triangle. The area of the triangle is base * high / 2. If the diameter of the circle (6) is what we use as the base, then 3 would be the high, making the area 9. This means the shaded area would be 9π - 9.

6 0
3 years ago
please help asap!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Phantasy [73]

Answer:

Area = 7.853981 in^2                (2.5 Pi)

Perimeter = 11.42478 in              (3.63Pi)

Step-by-step explanation:

Area

Lg semi circle area = Pi(2^2)(0.5) = 3.141593(4)0.5) = 6.283185 in^2

Sm semi circle area = Pi(1^2)(0.5) = 3.141593(2)(0.5) = 1.570796 in^2

added together = 7.853981 in^2

Perimeter

Lg semi circle perimeter = Pi(4)(0.5) + 2 = 8.283185 in

Sm semi circle perimeter = Pi(2)(0.5) = 3.141593 in

added together = 11.42478 in

5 0
3 years ago
Other questions:
  • Identify all of the radii of circle O<br><br> PLEASE HELP!!
    7·1 answer
  • Solve the quadratic equation x² - 6x + 25 = 0.
    14·2 answers
  • Need help with questions 5 and 6
    10·1 answer
  • If a bucket has three black balls and seven green balls, and we draw balls without replacement, the probability of drawing a gre
    8·1 answer
  • if you have $280 and you have 12 months or 365 days to pay it off. how much money would you pay every month?
    8·2 answers
  • An airplane is flying from new york city to los angeles. The distace it travels in miles, d, is related to the time in seconds,
    5·2 answers
  • Last week, labron jogged for 2 1/4 miles. This week , he plants to jog 2 times as far as last week. How many miles does Lebron P
    7·2 answers
  • (9.7 × 10^4) × (2.8 × 10^1)
    6·2 answers
  • Write the algebraic expression for 'x plus five is twenty three'.
    15·2 answers
  • Help pls ASAP <br> SOLVING QUADRATIC EQUATIONS BY FACTORING
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!